How are you trying to wake up from suspend? On what kind of machine? Reason I ask is, on my desktop, wiggling the mouse or pressing any key on the keyboard will not wake the machine up. On that particular machine, I have to push the power button. Press and release, no holding. On both my laptops, I just press one of the keys on the keyboard, usually the space bar. You probably tried all that already though but, sometime it bares mentioning the simple stuff first. Long time ago, maybe around Karmic Koala(?) I used to be able to just wiggle the mouse to wake things up. Not for awhile though.

Thanks for the reply! I am using an old Dell Inspiron 8600 laptop. I had a problem with it in 11, but the power key is the only thing that will "wake it up", even though it really only powers it back up. No keys or mouse movement will do the trick.

Everyone is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing it is stupid.